Novelty mouthpiece



FIG. 1 is a front perspective view of a novelty mouthpiece showing mynew design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a is a right side elevation view thereof, the left side beinga mirror image;

FIG. 4 is a top plan view thereof, the bottom plan view being a mirrorimage;

FIG. 5 is a front elevation thereof; and,

FIG. 6 is a rear elevation thereof.

The ornamental design for a novelty mouthpiece, as shown and described.